Tobacco curing burner



Jufiy 26, 1949. R. A. MAULTSBY TOBACCO CURING BURNER,

Filed Feb. 25, 1947 Patented July 26, 1949 UNITED STATES PATENT OFFICE TOBACCO CURING BURNER Rustic A. Maultsby, Bolivia, N. 0. Application February 25, 1947, Serial No. 730,709

2 Claims.

The present invention relates to improvements in burners and more particularly to burners of the type especially adapted for use in tobacco curing barns.

An important object of the invention is to provide a burner adaptable for use with high grade or low grade fuel oil, in which an even and thorough combustion takes place, with the resultant even distribution of heat for effectively curing tobacco suspended throughout the entire area of the barn.

Another object of the invention resides in the provision of a burner embodying means for directing the fuel from the centralmost portion of the burner through spaced vertical channels to a point on the outside thereof, whereby to assure an even and thorough combustion of the fuel.

A further object of the invention resides in the provision of tapered fln-like members on the outside of the burner for spreading the fuel and resultant flame, said tapered fin-like members terminating in a flanged receptacle which forms the base of the burner,

The above and other objects of the invention will in part be obvious and will in part be hereinafter more fully pointed out,

Figure 1 is an elevational view of the new and improved burner;

Figure 2 is a vertical sectional view thereof;

Figure 3 is a longitudinal sectional View taken substantially on line 3-3 of Figure 2;

Figure 4 is an enlarged vertical sectional view similar to Figure 2 with parts removed; and

Figure 5 is a longitudinal sectional view taken substantially on line 55 of Figure 4.

Referring to the drawing for a more detailed description thereof, the new and improved burner construction which is generally designated by the reference numeral 8 includes a dome-shaped housing 9 within which is supported the burner, generally designated by the reference numeral lb.

The housing 9 is formed with an'annular flange H which is secured by means of bolts or the like l2 to a base member [3. This base member forms the supporting means for the burner ID, as more clearly shown in Figure 2, said burner being supported on legs M which are welded or otherwise suitably attached to the base [3. Formed integrally with and extending downwardly from the top wall of the housing 9, there is a hollow tubular-shaped member 15 which terminates substantially midway of said housing. This member I 5 is open to the atmosphere for means of an supplying air to the burner W. A pair of tapered outlets i6 extend diametrically of the housing 9, and attached thereto are the flues H which are directed throughout the area of the tobacco curing barn, and through which the heated gases from the burner are expelled. The manner in which the flues H are attached to and associated with the barn form no part of the present invention.

As before indicated, the burner I0 is carried by and rests upon the base l3 and, as shown in Figure 2 of the drawing, is positioned so that the upper end thereof extends within the open end of the tubular member l5, whereby air from the outside of the housing 9 can be admitted to the burner. The burner It] includes a diskshaped receptacle l8 having upwardly and outwardly extending walls I9. Cast integrally with and extending upwardly from the bottom wall of the receptacle Hi, there is a tubular member 20, which member is open at its upper end. Fuel oil of the low grade or high grade type is fed to the burner from a source, not shown, through the pipe 2!. A second pipe 22 is connected by elbow 23 to the pipe 2|, this second pipe passing upwardly through the base l3 and the receptacle 3.. The upper end of the pipe 22 is, of course, open so that the fuel oil will travel upwardly therethrough to be directed downwardly along the outside of said pipe.

For directing the fuel oil downwardly on the outside of the pipe, there is provided a member 24. This member 24 is also tubular in shape, and has a top wall 25 which rests upon projections 26 formed integrally with the upper end of the pipe 22. Similar projections 21 are formed on the outer periphery of the pipe 22 near the bottom end of the member 24, and by reason of the projections 26 and 21, said member 24 is held in spaced relation on the pipe 22. It will also be noted that the member 24 is equally spaced from the walls of the tubular member 29. Thus the fuel oil entering the pipe 22 will be deflected against the top wall 25 and then be caused to be directed downwardly along the outside of the pipe 22, and thence upwardly through the space 28 between the members 20 and 24.

The upper end of the tubular member 20 supports a deflecting plate 29, said deflecting plate being carried on pins 3!] which project vertically from said member 29. The deflecting plate 29 functions to deflect the fuel and flame downwardly along the outside of the tubular member 20.

The tubular member 20 has formed integrally therewith a series of fin-like members 3|. These fin-like members are arranged in spaced relation on the member 26 and taper from the upper end thereof downwardly into engagement with the outwardly extending wall is of the receptacle 18. Thus the fuel and flame will be directed from the deflecting plate l9 downwardly along the tapered fin-like members 3i, causing further and more complete eombustion'o f the fuel prior to its entrance into the receptacle l8. The products of combustion from the burner pass upwardly and outwardly through the fiues II.

From the above description when taken can? 7 nection with the accompanying drawing, it is believed that the operation and advantages of the new and improved burner are readily apparent. When initially starting the burner, the fuel oil is turned on and fed to the receptacle l8 by passing through the pipe 22, downwardly between the n n and he m mb r .5., upwardly tbnorsh-the pa e 8 aac then downwardl a one the tanere fl 3L Air er sup orti cambusticn is a m tted throu h the ba let ubula shaped member 15, Upo the plicatio o a name to the e ta le t the .t 0 1 wil immediately b ame i nited w th he flam s the eof, thus can nlete r e v lopin th fill-like members .35 and thereby assuring an even and. thorough combustion .oi all of the. fuel b in :fed thereto. This eren and thorou h combusti n of th fuel ideyelops an even tempe ture .of heat which will he directed throughout the barn by m an the flue H. This even temperature .of heat assure amhoreughly efiicient curing of .the tobacco suspended in the barn.

Etwillzbe further seen that the hollow ubular shaped member d5 creates a .down draft (in the burner ii! wvhich'will force the flame down and between the finlike members '3]. These 'finrlike members :heat the zburner so that all of it-hB fuel will .become :vaporized, thereby maintaining the burner clean and free from carbon.

The deflecting member szilcan be adjusted and is :preferablydesigned for minute adjustment :in order for the :burner to have ,a proper draft and, therefore be free from smothering. "The :fin-like members '21 function to transfer the heat from within the burner to thereby obtain the greatest heating ability for thorough vaporization of the fuel.

It is obvious that many changes may be made in the details of construction without departing from the spirit of the invention as set forth in the appended claims.

I claim:

burne mprises 9 Em a her having a chamber atiits page, a pipe for feeding fuel centrally of the chamber, ahood-like covering carried by and spaced from the upper end of said pipe for directing fuel downwardly the yts-ide thereof, a tubular member extending upwardly from said chamber and surrounding said hood, and tapering fin-like members eggtending from the upper end of said tubular member downwardly into said chamber.

sin-1a oil burner comprising a burner member having a chamber at its base, a pipe for feeding f n all of the chamber. a macs-ted. t bular -shaped member carried by and spaced from the upper end .of said fuel pipe for ,dlreatipg filial, downwardly on the outside thereof, a tubular member integral with. and extend n gnwa id r from said chamber, deflecting means carried 9. the upper end of said tubular member, and tapering fnidilze members extending from he limit? end of said tubular member downwardly into said chamber.

asFesaNe-Es class he idlei s referen e a e 9 g m? s be? ie a as p r n number Name Date 1,637,833 Post i 0 t. 16, 1923 .HO. "r -r..- f 193.4 2.22.3302 :fi w a e, N V: 26,1940 9.3 i T'.="" 1942 2,444,814 Dowless July c, 194s EQREI QN Hamil? Number Country Date 146,881 Germ by A g-25, 936 

